Flat Roof Ventilation Systems

It alleviates moisture in the winter and heat in the summer to extend roof membrane life.

Flat roof ventilation systems.

The aluminum base holds the vent in place with built in flashing. The answer depends on the type of roof you have. Flat roof ventilation allows for the circulation of air in the property particularly for warmer rooms in residential buildings. Big organizations like the forest products laboratory and even the american society of heating refrigerating air conditioning engineers realized that poor roof ventilation systems could cause condensation problems in a.

All things being equal wind driven turbine vents also known as a whirlybird roof vent do move more air than flat vents but only when the wind blows. Roof ventilation is not a new process by any means. See the benefits of attic ventilation a new roof is more than just shingles. Any type of roof from tpo to epdm can be either hot or cold.

The keepa attic vent is used for ventilating attics and or plenum as a roof exhaust vent or as an air intake roof vent. In summer and warmer months outside temperatures intensify the effects of this heated air. Flat roofs are hard to replace. Ventilation is crucial to these areas as they affect the building as a whole both inside and out.

No matter what month it is hot air will accumulate in the attic at the peak of the roof. It depends on where the insulation is installed. A cold roof or hot roof. Flat roof ventilation is achieved by creating air changes to the attic or plenum.

But now flat roofs often are constructed with fewer layers because of improved waterproofing technology. When thermal insulation is placed below the deck the ventilation must also be on the underside. The rubber boot conforms to the exact size and shape of the pipe to keep water from leaking in. This could mean flat roofs may not raise the same red flags they used to.

The early to mid 20th century saw the development of this concept. How much ventilation does a flat roof need. There are two types of flat roof systems warm and cold roofs which affect the positioning of the ventilation. Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents.

Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. The keepa attic vent is built exclusively for flat roof ventilation roof pitch is 2 12 or less. Residential homes with flat roof vents make use of the boot vent. Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs.